DHCP address reservations for Clients - multiple VLANs and subnets
Our environment is one ER605 connected to two SG2008s with an OC200 controller. We also use multiple VLANs - LAN/GUEST/SERVER/IOT/LOT with different IP address ranges.
We were having trouble setting Fixed IP Addresses in the config screen for clients. The application seemed to require an IP reservation in the same subnet to which the ER605 belonged, even though the client had (and properly needed) an IP address for a different VLAN/subnet.
The work-around to get a Fixed IP Address was to change the Network/VLAN in the config drop-down, followed by changing the Network back to the correct Network/VLAN, and then finally the application accepted a Fixed IP Address in the proper Network/VLAN without error.